2006 Volvo C70 StandardFACTORY OEM SERVICE PROCEDURE

Engine Control Module (ECM) DTCS - B5244S4

ENGINE CONTROL MODULE (ECM) - DTC INDEX

OBD-II Code DTC Description
P2228 P2229 P2230 ECM-1000 Engine control module (ECM). Signal too high/Signal too low
P2227 ECM-100A Engine control module (ECM). Faulty signal
P0070 ECM-1100 Outside temperature sensor. Faulty signal
P0071 ECM-110A Outside temperature sensor. Faulty signal
P0113 P0114 ECM-1200 Intake air temperature (IAT) sensor. Signal too high
P0112 P0114 ECM-1200 Intake air temperature (IAT) sensor. Signal too low
P0111 ECM-120A Intake air temperature (IAT) sensor. Faulty signal
P0100 P0111 ECM-120D Intake air temperature (IAT) sensor. Faulty signal
P0103 P0104 ECM-1300 Mass air flow (MAF) sensor. Signal too high
P0102 P0104 ECM-1300 Mass air flow (MAF) sensor. Signal too low
P0101 ECM-130A Mass air flow (MAF) sensor. Faulty signal
NA ECM-130B Mass air flow (MAF) sensor. Signal too high
NA ECM-130B Mass air flow (MAF) sensor. Signal too low
P0108 P0109 ECM-1400 Intake pressure sensor. Signal too high
P0107 P0109 ECM-1400 Intake pressure sensor. Signal too low
P0106 ECM-140A Intake pressure sensor. Faulty signal
NA ECM-140B Manifold pressure sensor. Signal too high
NA ECM-140B Manifold pressure sensor. Signal too low
P2175 ECM-160A Electronic throttle unit. Faulty signal
P0118 P0119 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too high
P0117 P0119 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too low
P0116 P0125 ECM-200A Engine coolant temperature (ECT) sensor. Faulty signal
NA ECM-200F Engine coolant temperature (ECT) sensor. Faulty signal
P0128 ECM-201A Thermostat. Faulty signal
P0133 ECM-210A Front heated oxygen sensor (HO2S). Faulty signal
NA ECM-210F Front heated oxygen sensor (HO2S). Faulty signal
P0032 ECM-2110 Front heated oxygen sensor (HO2S). Signal too high
P0031 ECM-2110 Front heated oxygen sensor (HO2S). Signal too low
P0132 ECM-2120 Front heated oxygen sensor (HO2S). Signal too high
P0131 ECM-2120 Front heated oxygen sensor (HO2S). Signal too low
P0138 P0144 ECM-2200 Rear heated oxygen sensor (HO2S). Signal too high
P0137 P0143 ECM-2200 Rear heated oxygen sensor (HO2S). Signal too low
P0136 P0142 ECM-220A Rear heated oxygen sensor (HO2S). Faulty signal
NA ECM-220B Rear heated oxygen sensor (HO2S). Signal too high
NA ECM-220B Rear heated oxygen sensor (HO2S). Signal too low
P0036 P0037 P0042 P0043 ECM-2210 Rear heated oxygen sensor (HO2S). Faulty signal
P0038 P0044 ECM-2210 Rear heated oxygen sensor (HO2S). Signal too high
P0037 P0043 ECM-2210 Rear heated oxygen sensor (HO2S). Signal too low
P0201 P0202 P0203 P0204 P0205 ECM-23X0 Injector cylinder x. Faulty signal
P0171 ECM-250A Long-term fuel trim. Lower limit
P0172 ECM-250A Long-term fuel trim. Upper limit
P0192 P0194 ECM-2600 Fuel pressure sensor. Signal too high
P0193 P0194 ECM-2600 Fuel pressure sensor. Signal too low
P0191 ECM-260A Fuel pressure sensor. Faulty signal
NA ECM-260A Fuel pressure sensor. Signal too high
P0092 ECM-2610 Fuel pump (FP) control module. Signal too high
P0091 ECM-2610 Fuel pump (FP) control module. Signal too low
P0089 P0093 ECM-261A Fuel pressure system. Faulty signal
P0089 ECM-261A Fuel pressure system. Signal too high
P0089 ECM-261A Fuel pressure system. Signal too low
NA ECM-2A00 Center heated oxygen sensor (HO2S). Signal too high
NA ECM-2A00 Center heated oxygen sensor (HO2S). Signal too low
NA ECM-2A0A Center heated oxygen sensor (HO2S). Faulty signal
NA ECM-2A10 Center heated oxygen sensor (HO2S). Faulty signal
P0181 ECM-2A10 Center heated oxygen sensor (HO2S). Signal too high
NA ECM-2A10 Center heated oxygen sensor (HO2S). Signal too low
P0183 P0184 ECM-2B00 Fuel temperature sensor. Signal too high
P0182 P0184 ECM-2B00 Fuel temperature sensor. Signal too low
P0181 ECM-2B0A Fuel temperature sensor. Faulty signal
NA ECM-3000 Camshaft position (CMP) sensor, intake. Faulty signal
P0341 ECM-300A Camshaft position (CMP) sensor, intake. Faulty signal
P0365 ECM-3010 Camshaft position (CMP) sensor, exhaust. Faulty signal
P0366 ECM-301A Camshaft position (CMP) sensor, exhaust. Faulty signal
P0337 P0340 ECM-3100 Engine speed (RPM) sensor. Faulty signal
P0336 P0339 ECM-310A Engine speed (RPM) sensor. Signal faulty/Intermittent fault
P0350 ECM-3200 Ignition coil. Faulty signal
P0351 P0352 P0353 P0354 P0355 ECM-33X0 Ignition coil x. Faulty signal
P0238 ECM-3400 Knock sensor (KS). Signal too high
P0327 ECM-3400 Knock sensor (KS). Signal too low
P0326 ECM-340A Knock sensor (KS). Too little roar
P0326 ECM-340A Knock sensor (KS). Too much roar
NA ECM-3502 Misfire, emission effect. Misfire cyl 1
P0300 ECM-3502 Misfire, emission effect. Misfire, at least one cylinder
NA ECM-3503 Misfire, catalytic converter damage. Misfire cyl 1
P0300 ECM-3503 Misfire, catalytic converter damage. Misfire, at least one cylinder
P0459 ECM-4000 Canister purge (CP) valve. Signal too high
P0458 ECM-4000 Canister purge (CP) valve. Signal too low
P0441 ECM-400A Canister purge (CP) valve. Faulty signal
NA ECM-4038 Fuel tank filler cap. Missing
P0460 P2067 ECM-4050 Fuel level sensor. Faulty signal
P0461 P0464 ECM-405A Fuel level sensor. Faulty signal
P0420 ECM-4201 Three-way catalytic converter (TWC) efficiency. Faulty signal
NA ECM-4308 Tank system, leak. Large leak
P2402 ECM-4310 Leak diagnostic unit, pump. Signal too high
P2401 ECM-4310 Leak diagnostic unit, pump. Signal too low
P2405 P2406 P2407 ECM-431A Leak diagnostic unit, pump. Faulty signal
P0445 ECM-4320 Leak diagnostic unit, valve. Signal too high
P0444 ECM-4320 Leak diagnostic unit, valve. Signal too low
P2404 ECM-432A Leak diagnostic unit, valve. Faulty signal
P2402 ECM-4350 Leak diagnostic unit, heater element. Signal too high
P2401 ECM-4350 Leak diagnostic unit, heater element. Signal too low
NA ECM-470A Catalyst heating. Low
NA ECM-5000 Air conditioning (A/C) pressure sensor. Signal too high
NA ECM-5000 Air conditioning (A/C) pressure sensor. Signal too low
P0531 ECM-500A Air conditioning (A/C) pressure sensor. Faulty signal or signal missing
P0500 ECM-510D Vehicle speed signal. Faulty signal
P2162 ECM-510F Vehicle speed signal. Faulty signal
P0500 ECM-511D Vehicle speed signal. Faulty signal
P0500 ECM-511D Vehicle speed signal. Signal missing
P2162 ECM-512D Vehicle speed signal. Faulty signal
P0512 ECM-5200 Starter motor signal. Signal too high
P0512 ECM-5200 Starter motor signal. Signal too low
P0700 ECM-530D Diagnostic trouble code (DTC) in the transmission control module (TCM). Faulty signal
C322 P0502 ECM-531D Diagnostic trouble code (DTC) in the central electronic module (CEM). Faulty signal
P2177 ECM-532D High emissions. Faulty signal
NA ECM-6000 A/C relay. Signal too high
NA ECM-6000 A/C relay. Signal too low
P0480 P0691 ECM-6100 Engine cooling fan (FC). Faulty signal
P0692 ECM-6100 Engine cooling fan (FC). Signal too high
P0691 ECM-6100 Engine cooling fan (FC). Signal too low
P0507 ECM-620A Idling speed. High
NA ECM-6400 Camshaft reset valve, intake Signal missing
P0077 ECM-6400 Camshaft reset valve, intake Signal too high
P0076 ECM-6400 Camshaft reset valve, intake Signal too low
NA ECM-6404 Inlet camshaft control. Signal too high
NA ECM-6404 Inlet camshaft control. Signal too low
P0011 ECM-640A Inlet camshaft control. Signal too high
P0011 ECM-640A Inlet camshaft control. Signal too low
P0011 ECM-640F Camshaft position, intake. Signal too high
P0012 ECM-640F Camshaft position, intake. Signal too low
P0617 ECM-6600 Starter motor relay. Signal too high
P0616 ECM-6600 Starter motor relay. Signal too low
C422 ECM-710A CAN communication. Faulty signal
P0668 P0669 ECM-7140 Temperature sensor engine control module (ECM). Signal too high/Signal too low
P1638 ECM-715D Engine control module (ECM). Faulty signal
P0634 ECM-716D Engine control module (ECM). Faulty signal
C326 ECM-720A Immobilizer communication. Communication fault
C318 ECM-720A Immobilizer communication. Comparison fault
C318 ECM-720A Immobilizer communication. Signal missing
P0603 ECM-8000 12 volt power supply. Signal too low
P0563 ECM-8010 Battery voltage. Signal too high
P0562 ECM-8010 Battery voltage. Signal too low
P0685 ECM-820A System relay. Faulty signal
P0643 ECM-8400 5 volt power supply. Signal too high
P0642 ECM-8400 5 volt power supply. Signal too low
P0607 ECM-900C Engine control module (ECM). Internal fault
P0607 ECM-900E Engine control module (ECM). Internal fault
P0574 ECM-902C Engine control module (ECM). Internal fault
P2121 ECM-914C Throttle unit. Faulty signal
P2121 ECM-914C Throttle unit. Signal too high
P2121 ECM-914C Throttle unit. Signal too low
P2119 ECM-91AC Throttle unit. Current too high
P2103 P2118 P2119 ECM-91AC Throttle unit. Faulty signal
P2119 ECM-91AC Throttle unit. Throttle jammed
P0579 P2135 ECM-9200 Cruise control. Faulty signal
P0575 ECM-922C Cruise control. Communication fault
P0806 ECM-930C Clutch pedal sensor. Diagnostic trouble code (DTC) in the central electronic module (CEM)
P0571 P0703 ECM-940C Brake pedal sensor. Faulty signal
P0571 P0703 ECM-940C Brake pedal sensor. Signal missing
P0571 P0703 ECM-941C Stop lamp switch. Faulty signal
P0507 P2123 P2128 ECM-950C Accelerator pedal (AP) position sensor. Analog signal too high
P2138 ECM-950C Accelerator pedal (AP) position sensor. Comparison fault
P2120 ECM-950C Accelerator pedal (AP) position sensor. Faulty pulse width modulation (PWM) signal
P0507 P2123 ECM-950C Accelerator pedal (AP) position sensor. Pulse width modulation (PWM) signal too high
NA ECM-950C Accelerator pedal (AP) position sensor. Pulse width modulation (PWM) signal too low
P2111 ECM-9818 Brake vacuum. Faulty signal
P2172 ECM-990F Torque monitoring. Faulty signal
P2106 ECM-9918 Throttle unit. Faulty signal
NA ECM-9A0A Vehicle behavior. Behavior 1
NA ECM-9A0A Vehicle behavior. Behavior 2
NA ECM-9A0A Vehicle behavior. Behavior 3
NA ECM-9A0A Vehicle behavior. Behavior 4
NA ECM-9A0A Vehicle behavior. Behavior 5
NA ECM-9A0A Vehicle behavior. Behavior 6
NA ECM-9A0A Vehicle behavior. Behavior 7
NA ECM-9A0B Vehicle behavior. Behavior 1
NA ECM-9A0B Vehicle behavior. Behavior 2
C101 ECM-A00B Communication, transmission control module (TCM). Faulty signal
C121 ECM-A02B Communication, brake control module (BCM). Faulty signal
C141 ECM-A03B Communication, central electronic module (CEM). Faulty signal
NA ECM-A10B LIN communication. Alternator control module (ACM), faulty communication
NA ECM-A10B LIN communication. Engine control module (ECM), faulty communication
NA ECM-A10D Alternator control module (ACM). Faulty communication
NA ECM-A10D Alternator control module (ACM). Faulty signal
NA ECM-A10D Alternator control module (ACM). Signal too high/Signal too low
NA ECM-A10D Alternator control module (ACM). Temperature too high
NA ECM-A11A Premair sensor. Faulty signal
NA ECM-A11D Premair sensor. Faulty signal
NA ECM-E000 Control module communication. Faulty communication
C400 ECM-E003 Configuration fault. Faulty configuration
NA ECM-XXXX Unknown diagnostic trouble code (DTC) for the current control module version
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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